scholarly journals Gyroscope precession along general timelike geodesics in a Kerr black hole spacetime

2017 ◽  
Vol 95 (12) ◽  
Author(s):  
Donato Bini ◽  
Andrea Geralico ◽  
Robert T. Jantzen
Keyword(s):  
Black Hole ◽  
Kerr Black Hole ◽  
Black Hole Spacetime ◽  
Gyroscope Precession

scholarly journals Photon escape in the extremal Kerr black hole spacetime

2022 ◽  
Vol 105 (2) ◽  
Author(s):  
Kota Ogasawara ◽  
Takahisa Igata
Keyword(s):  
Black Hole ◽  
Kerr Black Hole ◽  
Black Hole Spacetime

scholarly journals Strong lensing and observables around 5D Myers–Perry black hole spacetime

2018 ◽  
Vol 33 (23) ◽  
pp. 1850126
Author(s):  
Ravi Shankar Kuniyal ◽  
Hemwati Nandan ◽  
Uma Papnoi ◽  
Rashmi Uniyal ◽  
K. D. Purohit
Keyword(s):  
Black Hole ◽  
Deflection Angle ◽  
Strong Field ◽  
Kerr Black Hole ◽  
Four Dimensions ◽  
Test Particles ◽  
Spin Parameter ◽  
Black Hole Spacetime ◽  
Field Coefficient ◽  
Deflection Limit

We study the motion of massless test particles in a five-dimensional (5D) Myers–Perry black hole spacetime with two-spin parameters. The behavior of the effective potential in view of different values of black hole parameters is discussed in the equatorial plane. The frequency shift of photons is calculated which is found to depend on the spin parameter of black hole and the observed redshift is discussed accordingly. The deflection angle and the strong deflection limit coefficients are also calculated and their behavior with the spin parameters is analyzed in detail. It is observed that the behaviors of both deflection angle and strong field coefficient differs from Kerr black hole spacetime in four dimensions in General Relativity (GR), which is mainly due to the presence of two-spin parameters in higher dimension.

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